Chapter 1 Overview; Model Description - Emerson Liebert.PEX+ Series User Manual

The Liebert.PEX+ series precision air conditioner ("Liebert.PEX+" for short hereafter) is professional equipment, which
should not be accessible to the general public. The Liebert.PEX+ is a medium-large size precision environment control
system, suitable for the environment control of the equipment room or computer room, featuring high reliability, high
sensible heat ratio and large air flow. This chapter introduces the model description, appearance, main components
and optional parts.

1.1 Model Description

The model description of Liebert.PEX+ is shown in Figure 1-1.
1 2 3 4
P 1 0 5
Digit1 Product model
P PEX+
Digit2 Product model
1-2 Number of Modules/Bays
Digit3 Cooling Capacity kW
0-9 Nominal Net Cooling Capacity - kW
Digit4 Cooling Capacity kW
0-9 Nominal Net Cooling Capacity - kW
Digit5 Cooling Capacity kW
0-9 Nominal Net Cooling Capacity - kW
Digit6 Air Discharge
U Upflow
D Downflow
Digit7 System type
A Air cooled
W Water cooled
D Dual Cool-Chilled water+Air cooled
H Dual Cool-Chilled water+Water cooled
Digit8 Fan
1 EC plug fan
Digit9 Power Supply
3 380-415V / 3ph / 50Hz+N
T 380-415V / 3ph / 60Hz+N
Digit10 Cooling System
C Compliant Scroll Single Circuit, R407C
S Compliant Scroll Dual Circuit, R407C
E Digital Scroll Single Circuit, R407C
D Digital Scroll Dual Circuit, R407C
4 Compliant Scroll Single Circuit, R410A
6 Compliant Scroll Dual Circuit,R410A
7 Digital Scroll Single Circuit,R410A
T Digital Scroll Dual Circuit,R410A
Digit11 Humidification
0 None
H Infrared Humidifier
S Electrode humidifier
Digit12 Display
S Standard Display
L Large Display
Digit13 Re-Heating
0 None
1 Electric heating Std 1 Stage
2 Electric heating Opt. 2 Stage
Digit14 Air Filter
2 G4
3 F5
Digit15 Coil and Valves
S Standard DX Air cooled coil，TXV
E Standard DX Air cooled coil，EEV
4 Dual Cool Coil,BPHE-2way,CW 2 way,TXV
K Dual Cool Coil,BPHE-3way,CW-3 way,TXV

Chapter 1 Overview

5 6 7 8 9 10 11
0 D A 1 3 S
Figure 1-1 Model description
Liebert. PEX+Series Precision Air Conditioner
12 13 14 15 16 17
H S 1 2 E 1 D
N Dual Cool Coil,BPHE-2way,CW-3 way,TXV
P Dual Cool Coil,BPHE-3way,CW-2 way,TXV
Digit16 Enclosure options
1 Standard Color black orange peel grain coating
2 White orange peel grain coating
6 Color Charcoal grey w/Double skin
Digit17 Mains Switch High Voltage Option
0 None
D Main non-Locking Disconnect
P Dual Power Supply Parallel
A Dual Power Supply Auto Alternate(Interlocking contactor)
T Dual Power Supply Auto Alternate(ATS)
Digit18 Lock Out Low Voltage Option
0 None
H Reheat & Humidity Lockout
Digit19 Monitoring
0 No Card
7 IS-UNITY Card
C ICOM DO Card
U IS-UNITY Card & ICOM DO Card
Digit20 Sensors
0 None
S Smoke Sensor
H High Temperature
N Supply Air Temperature Sensor
F Smoke & High Temp
A Supply air pressure sensor
L Water Flow Sensor
X Other Sensor
Digit21 Packaging
P Packaging - Standard Cardboard and Wooden Pallet
C Packaging - Wooden crate Export
Digit22 Special Requirements
A SFA - none
Z For Internal Use Only(For Australia and New zealand)
E For Export
Digit23 Order Identifier
0 Standard Static
1 High ESP 100 Pa
2 High ESP 200 Pa
3 Other High ESP
X SFA Included
Digit24 Order Identifier
0 None
L Air cooled-long piping>30m
C Low temp Kits
B Low temp Kits+Long piping
X SFA Included
Digit25 Order Identifier
0 None
X SFA Included
Chapter1 Overview
18 19 20 21 22 23 24 25
0 0 0 P A 0
User Manual
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0 0